Hi,
Performed first tests and learned thing trought the hard way. Plan was to do A-B-A measurements in 3km long and level straight. We used only 14 FleXcaps because front capsels were so rosted that the bolt heads were ruined and we decided to leave them on.
Longer distance was about 11 long kilometers in one direction. Total length of one north to south run is about 28 kilometers.
Mittaustulokset 5-6.2.2011.jpeg - Windows Live
1. We drived the first run to north and got a result 38.7L/100km. Mistake number one was that we drived the car about 20 km before the first run.
2. Same leg to south 30,5 l that number (27.1) is for longer distance.
3. North still capsels off 39.5l. Those + plusses mean that car went by, one plus one car...
4. South 30,3l and (27.0)
When we first drived two times the straight and got north results varied 2% we decided to measure effect on longer distance, because we got better accuracy for that to south. First results for south were. 27.1 and 27.0 so accuracy was amazingly good between runs.
5. North same long distance as to south. 43,1 and 42,5. Measured results to two points on the road.
6. 29.9l (26,7l) As you can see from these figures they get smaller. That is caused the fact that car warm up during the runs bearing, oils etc. Now we had already driven the car before the test for 50 km before the first run.
Now it took about 20 minutes to install the capsels beacause we took some video material also. Car was runnin this time but temperature was -2 celsius so the car calmed little.
Now the first difference is that we did not warm the car for 20 km before first run capsels on so the car is "cold"
7. result was 44.2 liters which is 3,8% more than the one run (42,5l) we had for that long run to north capsels off.
8. 30,6 and to that longer distance 26,8 liters. That short leg car is still guite cold and gives the highest result so far but to the longer measurement it is already best 26,8.
9. Now here we had a human error and driver forget to put down one of the axels on the truck. We decided to measure same leg as in first two north runs. 38,6 liters which is the lowest by small margin.
10. Here police patrol stopped us checked our papers. They were wondering what the hell we drive aroung motorway in the middle of the night. It took 20 minuts and again car became "cold". Still we were able to get 31,4 and 27,3 liters. Now the warm up effect is 4.1 liters or 13% difference. This police incident pretty much ruined our last measurements because we measurements are not really comparable after this.
11. 43,1l
12. 27,1 liters. I have also wind data and try to find out if this can be caused by the wind. During measurements wind speed rose little.
13. We took 20 minutes coffee breack and too Capsels again off. 45,6 liters. Now this runs only difference measuremenet 7 is wind speed so this is good comparison. Difference is 3.1 %.
14. 32,7l and 28,1. Again best comparison to mearument 8 and difference is 4,6%. Difference between these two runs which are tests best comparisons is total 3,85% less fuel.
15. 44.0
16. 31,1l and 28,0 liters
17. 43,8 liters
18. 28,5 liters.
Average of all A off north 43,975 (4 runs)
average of all B on north 43,65 ( only 2 runs)
Difference 0.74 % and remenber those figures are not good comparison to each other...
A1 off south 26,933l (3 runs)
B on south 27,07 l (3 runs)
A2 off south 28,2l (3runs)
Better comparison is B to A2 and difference is 4 %. Difference between A and B south all runs is 1.8%
Difference between all A and B runs is 1.3% which is still good result. We have to do second test on that same place. Place worked out well but our testing werent perfect. Biggest factors were, mistake on the first measurement, and the police. Also we should have changed the capsels between every run to avoid that wind and also warming up effect. Next time we will install capsels in 5 minuts and take them out in 5 minuts so all runs are comparable to each other in better manner.
More data will come as soon as I am able to process it first. Also video footage.